Will this work with dp to hdmi cables, and usb to hdmi adapter?

Yes, they works with this KVM switch. But note that it must be dp/usb to hdmi cable/adapter, not hdmi to dp/usb.

Can the 2nd monitor from the laptop come from a usb-c port with a converter to hdmi? thanks!

Sure, it can works with usb-c port to to hdmi converter.

What is the maximum refresh rate when using 3440x1440 resolution? is it 144hz? or is it 60hz?

The KVM switch support 3440x1440 resolution up to 60Hz.

does this have ethernet port?

Sorry, this kvm switch doesn't have ethernet port.

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🎯 Master your multi-device workspace like a pro—switch smarter, work faster!

BLAZING FAST USB 3 0 HUB - Share high-speed peripherals effortlessly with 5Gbps data transfer—10x faster than USB 2.0.
EFFORTLESS SWITCHING MODES - Switch via front panel or hotkeys—no drivers needed, plug & play across Windows, Mac, Linux, and more.
FUTURE PROOF COMPATIBILITY - Supports multiple OS, independent audio/mic ports, and auto wake-up for a truly professional setup.
ZERO LATENCY GAMING WORK - Experience lag-free transitions and uninterrupted workflow with advanced hardware design.
SEAMLESS DUAL MONITOR CONTROL - Manage two PCs with one keyboard & mouse across ultra-wide 4K and 2K displays for ultimate multitasking.

The AV Access KVM Switch Dual Monitor 2 Ports supports simultaneous control of two computers with dual HDMI outputs up to 4K@60Hz and 2K@144Hz. Featuring a USB 3.0 hub with 5Gbps transfer speeds, hotkey and front panel switching, and broad OS compatibility, it delivers zero-delay switching and plug-and-play convenience for professional multitasking and gaming setups.

€ 288.04

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

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Compatible Devices	Projector, Scanner
Color Name	KVM Switch Dual Monitor (4KSW21-DM)
International Protection Rating	IP54
Batteries Included	No
Batteries Required	No
Brand	v AV Access
Manufacturer	AV Access
Item Model Number	4KSW21-DM
Size	4K 2PC入力2出力 HDMI
Product Dimensions	14.26 x 2.3 x 2.62 cm; 1.64 kg

AV Access KVM Switch Dual Monitor 2 Ports 4K@60Hz, 2K@144Hz, Switcher HDMI USB 3.0 Switch Extended Display 2 Monitors 2 Computers, Ultra Wide Screen PC Keyboard Mouse Switcher, Hot Key Switch, 2 USB

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